Re: [Elecraft] K3/K2: cumulative HF xcvr review from eHam

2013-12-26 Thread Bill W4ZV
Jim Brown-10 wrote
 The 7600 is also an RF trash generator -- clicks and 
 phase noise abound.

Not as bad as many others...Flex Radios the worst by far:

Model QST Rx @20 kHz Tx @20 kHz Diff Tx Wide
(-dBc) (-dBc) (dB) (-dBc)
K3 Jan 09 112 (104) 119 -7 128@100kHz, 120@360kHz
TS-599AT Aug 11 115 (93) 108 7 112@100kHz
IC-7600 Nov 09 105 (100) 102 3 111@100kHz
IC-7700 Oct 08 109 (105) 108 1 110@100kHz
TS-590S May 11 120 (104) 106 14 110@100kHz
KX3
Dec 12 120 (105) 97 23 107@100kHz
IC-9100 Apr 12 101 101 0 105@100kHz
FTdx5000 Dec 10 109 (104) 104 5 103@100kHz
FT-950 Mar 08 86 (105) 100 -14 102@100kHz
FTdx9000 Jul 10 114 101 13 100@100kHz
FT-450D Nov 11 98 85 13 96@100kHz
IC-7200 Jun 09 103 95 8 94@100kHz
Flex-1500 Dec 11 107 (88) 101 6 81@300kHz
Flex-5000A Jul 08 99 (96) 91 8 77@350kHz 

http://www.sm5bsz.com/dynrange/dubus313.pdf

73,  Bill  W4ZV




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Re: [Elecraft] K3/K2: cumulative HF xcvr review from eHam

2013-12-26 Thread Jim Brown

On 12/26/2013 4:36 AM, Bill W4ZV wrote:

The 7600 is also an RF trash generator -- clicks and
phase noise abound.

Not as bad as many others...Flex Radios the worst by far:


That does not consider clicks -- most if not all Icom radios have a 
leading spike, and the keying rise time on the 7600 is adjustable over a 
wide range, most settings of which produce broad clicks.


Can't speak to the Flex radios -- so far, I've not lived close to one.

Thanks for the link to the SM5BSZ review. Your copy of the table doesn't 
work very well in email, but the data in Leif's report is quite clear. 
It says that the 7600 is 11dB worse than the K3 -- that's 12X the power 
of the trash within 20 kHz for phase noise alone!


73, Jim K9YC
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Re: [Elecraft] K3/K2: cumulative HF xcvr review from eHam

2013-12-26 Thread Jim Brown

On 12/26/2013 10:04 AM, Jim Brown wrote:
It says that the 7600 is 11dB worse than the K3 -- that's 12X the 
power of the trash within 20 kHz for phase noise alone!


Correction -- the 7600 is 17 dB worse than the K3, 50X the power of the 
trash from phase noise.


73, Jim K9YC
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[Elecraft] K3/K2: cumulative HF xcvr review from eHam

2013-12-25 Thread Douglas Zwiebel
Hope this prints OK.

While doodling around today, I thought to take a look at the eHam.net
product reviews.

Somewhat difficult to make a lot of sense from it, so I thought I'd import
it into Excel.

I've limited the list below to those rigs with 100 or more reviews.  The
sort is by average rating, then # of reviews.

Interesting stuff...and not too shabby for Elecraft K3 and K2.  KUDOS.
I'm happy to report that at some point in my ham career, I've owned the
first 3 listed.

I may regret this, but if you'd like the entire excel file, drop me a
line.  Then you can sort it any number of ways you like, for every single
radio ever reviewed.

This listing is as of Dec 25, 2013 around 2030z.

de Doug KR2Q

ReviewsAve ratingProduct
2094.9 Elecraft K3
1184.9 Kenwood TS-830S
2894.8 Elecraft K2  K2/100
2184.8 ICOM IC-756 Pro III
1874.8 Kenwood TS-480SAT
1594.8 ICOM IC-7200
1324.8 Yaesu FT-990
1174.8 Kenwood TS-850
1134.8 Kenwood TS-480HX
1094.8 Yaesu FT-1000MP Mk V Field
1064.8 Yaesu FT-1000(D)
1004.8 Kenwood TS-520S
2434.7 ICOM IC-746
2394.7 Kenwood TS-590S
1624.7 Yaesu FT-920
1554.7 Kenwood TS-870S
1504.7 Yaesu FT-840
1424.7 ICOM IC-756PRO
1164.7 Kenwood TS-940SAT
1134.7 ICOM IC-735
1134.7 ICOM IC-7600
3934.6 ICOM IC-718
3554.6 Yaesu FT-897  897D
2724.6 Yaesu FT-950
2294.6 Yaesu FT-450
1794.6 Kenwood TS-570D(G)
1644.6 Ten-Tec Jupiter
1464.6 ICOM IC-756PRO2
4784.5 Kenwood TS-2000
4254.5 Yaesu FT-857 - all flavors
1244.5 ICOM IC-7700
4554.4 ICOM IC-706 - All flavors
1664.4 Yaesu FT-847
1524.4 Alinco DX-70TH
3104.3 ICOM IC-7000
2054.3 Yaesu FT-2000/2000D
1764.3 Icom IC 703
1634.3 Yaesu FT-1000MP Mk V
3414.2 ICOM IC-746PRO
1874.2 Yaesu FT-100D
1344.2 Radio Shack HTX-10
1103.7 Yaesu FT-100
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Re: [Elecraft] K3/K2: cumulative HF xcvr review from eHam

2013-12-25 Thread Jim Brown

On 12/25/2013 1:06 PM, Douglas Zwiebel wrote:

I've limited the list below to those rigs with 100 or more reviews.  The
sort is by average rating, then # of reviews.


I wouldn't put too much credence in a sort like this -- ratings like 
this are highly subjective, based on factors like  expectations, 
intended use, relative cost, and experience and the technical background 
of the reviewer. Is it the guy's first rig, or has he owned and used a 
dozen or more over decades on the air?  Is he a serious DXer, contester, 
or casual ragchewer? All product reviews must be read through a strong 
BS filter.


In this particular list, for example, the TS480 is unique, being one of 
the first (and still few) HF rigs specifically designed for remote 
operation.  Likewise, the 746 (I've owned two) provides a lot of bang 
for the buck and is fairly robust, but it's got lots of phase noise and 
a weak front end. The 7600 is also an RF trash generator -- clicks and 
phase noise abound.


73, Jim K9YC
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Re: [Elecraft] K3/K2: cumulative HF xcvr review from eHam

2013-12-25 Thread Douglas Zwiebel
Jim, K9YC sed:
[snip]

I wouldn't put too much credence in a sort like this -- ratings like
this are highly subjective

[end snip]

Which is exactly why I limited the list to 100 or more reviews.  I figure
that folks who buy, or might buy, a K3 or K2 (or any other rig), are
probably as subjective as these reviews.  Hence, increased validity
overall for the average Joe Ham.

If you were to review only serious contesters, I'm sure the K3 would stand
out even more.  But most of the reviews, by category of reviewer, are not
from contesters.

So I think the list is still reasonably apples to apples...but your
warning is absolutely true.

mx es hny!

de Doug KR2Q
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Re: [Elecraft] K3/K2: cumulative HF xcvr review from eHam

2013-12-25 Thread EricJ
Interesting list, but I just bought a DX-40 on ebay and it's not on it. 
Did I screw up?


Eric
KE6US

On 12/25/2013 1:06 PM, Douglas Zwiebel wrote:

Hope this prints OK.

While doodling around today, I thought to take a look at the eHam.net
product reviews.

Somewhat difficult to make a lot of sense from it, so I thought I'd import
it into Excel.

I've limited the list below to those rigs with 100 or more reviews.  The
sort is by average rating, then # of reviews.

Interesting stuff...and not too shabby for Elecraft K3 and K2.  KUDOS.
I'm happy to report that at some point in my ham career, I've owned the
first 3 listed.

I may regret this, but if you'd like the entire excel file, drop me a
line.  Then you can sort it any number of ways you like, for every single
radio ever reviewed.

This listing is as of Dec 25, 2013 around 2030z.

de Doug KR2Q

ReviewsAve ratingProduct
2094.9 Elecraft K3
1184.9 Kenwood TS-830S
2894.8 Elecraft K2  K2/100
2184.8 ICOM IC-756 Pro III
1874.8 Kenwood TS-480SAT
1594.8 ICOM IC-7200
1324.8 Yaesu FT-990
1174.8 Kenwood TS-850
1134.8 Kenwood TS-480HX
1094.8 Yaesu FT-1000MP Mk V Field
1064.8 Yaesu FT-1000(D)
1004.8 Kenwood TS-520S
2434.7 ICOM IC-746
2394.7 Kenwood TS-590S
1624.7 Yaesu FT-920
1554.7 Kenwood TS-870S
1504.7 Yaesu FT-840
1424.7 ICOM IC-756PRO
1164.7 Kenwood TS-940SAT
1134.7 ICOM IC-735
1134.7 ICOM IC-7600
3934.6 ICOM IC-718
3554.6 Yaesu FT-897  897D
2724.6 Yaesu FT-950
2294.6 Yaesu FT-450
1794.6 Kenwood TS-570D(G)
1644.6 Ten-Tec Jupiter
1464.6 ICOM IC-756PRO2
4784.5 Kenwood TS-2000
4254.5 Yaesu FT-857 - all flavors
1244.5 ICOM IC-7700
4554.4 ICOM IC-706 - All flavors
1664.4 Yaesu FT-847
1524.4 Alinco DX-70TH
3104.3 ICOM IC-7000
2054.3 Yaesu FT-2000/2000D
1764.3 Icom IC 703
1634.3 Yaesu FT-1000MP Mk V
3414.2 ICOM IC-746PRO
1874.2 Yaesu FT-100D
1344.2 Radio Shack HTX-10
1103.7 Yaesu FT-100
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Re: [Elecraft] K3/K2: cumulative HF xcvr review from eHam

2013-12-25 Thread Dick Dickinson
With 2 more reviews, the venerable Icom IC-751A would top the list at 5.0.

 

73,

Dick - KA5KKT

 

 

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Re: [Elecraft] K3/K2: cumulative HF xcvr review from eHam

2013-12-25 Thread Ron D'Eau Claire
Good point Eric. You demonstate how much personal interests affect how a rig
might be rated. 

Compared to what a DX-40 has to offer the antique enthusiast, all of the
rigs on Doug's list don't even make the list, Hi! 

73, Ron AC7AC

-Original Message-

Interesting list, but I just bought a DX-40 on ebay and it's not on it. 
Did I screw up?

Eric
KE6US


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Re: [Elecraft] K3/K2: cumulative HF xcvr review from eHam

2013-12-25 Thread Wayne Burdick
Interesting stats, Doug. I expected the KX3 to be right up there near the top, 
too, but then I realized it has only 99 reviews. Just missed The Cutoff :)  

eHam is a highly approximate metric for radio quality. But I do read every 
review, since they're are often posted by customers who aren't subscribed to 
our reflector. Lots of valuable observations, ideas for improvement, etc.

Wayne
N6KR


On Dec 25, 2013, at 1:06 PM, Douglas Zwiebel doug...@gmail.com wrote:

 Hope this prints OK.
 
 While doodling around today, I thought to take a look at the eHam.net
 product reviews.
 
 Somewhat difficult to make a lot of sense from it, so I thought I'd import
 it into Excel.
 
 I've limited the list below to those rigs with 100 or more reviews.  The
 sort is by average rating, then # of reviews.
 
 Interesting stuff...and not too shabby for Elecraft K3 and K2.  KUDOS.
 I'm happy to report that at some point in my ham career, I've owned the
 first 3 listed.
 
 I may regret this, but if you'd like the entire excel file, drop me a
 line.  Then you can sort it any number of ways you like, for every single
 radio ever reviewed.
 
 This listing is as of Dec 25, 2013 around 2030z.
 
 de Doug KR2Q
 
 ReviewsAve ratingProduct
 2094.9 Elecraft K3
 1184.9 Kenwood TS-830S
 2894.8 Elecraft K2  K2/100





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Re: [Elecraft] K3/K2: cumulative HF xcvr review from eHam

2013-12-25 Thread Fred C. Jensen
From your perspective Wayne, i'd read them all too.  From my perspective as 
just a ham, I've pretty much given up on eHam reviews.  Like me trying to 
learn how to pilot a helicopter, they are all over the sky.  Plus, I don't 
know who they are, what they expected, whether or not that was realistic, or 
whether the actually knew what they were doing.

Merry Christmas to all

Fred K6DGW
TDY Sparks NV

PS: Never did learn to pilot the helicopter effectively 

Wayne Burdick n...@elecraft.com wrote:

Interesting stats, Doug. I expected the KX3 to be right up there near the top, 
too, but then I realized it has only 99 reviews. Just missed The Cutoff :)  

eHam is a highly approximate metric for radio quality. But I do read every 
review, since they're are often posted by customers who aren't subscribed to 
our reflector. Lots of valuable observations, ideas for improvement, etc.

Wayne
N6KR


On Dec 25, 2013, at 1:06 PM, Douglas Zwiebel doug...@gmail.com wrote:

 Hope this prints OK.
 
 While doodling around today, I thought to take a look at the eHam.net
 product reviews.
 
 Somewhat difficult to make a lot of sense from it, so I thought I'd import
 it into Excel.
 
 I've limited the list below to those rigs with 100 or more reviews.  The
 sort is by average rating, then # of reviews.
 
 Interesting stuff...and not too shabby for Elecraft K3 and K2.  KUDOS.
 I'm happy to report that at some point in my ham career, I've owned the
 first 3 listed.
 
 I may regret this, but if you'd like the entire excel file, drop me a
 line.  Then you can sort it any number of ways you like, for every single
 radio ever reviewed.
 
 This listing is as of Dec 25, 2013 around 2030z.
 
 de Doug KR2Q
 
 ReviewsAve ratingProduct
 2094.9 Elecraft K3
 1184.9 Kenwood TS-830S
 2894.8 Elecraft K2  K2/100





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Re: [Elecraft] K3/K2: cumulative HF xcvr review from eHam

2013-12-25 Thread Jim Brown

On 12/25/2013 9:22 PM, Wayne Burdick wrote:

Lots of valuable observations, ideas for improvement, etc.


That's why you guys have always been in front of the pack!

73, Jim
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